Influence of hydroxypropyl methylcellulose edible coating on fresh-keeping and storability of tomato

Influence of hydroxypropyl methylcellulose edible coating on fresh-keeping and storability of tomato

庄荣玉;黄耀文

【期刊名称】《浙江大学学报：自然科学英文版》 【年(卷),期】2003(004)001

【摘要】The effect of application of cellulose-based edible coating, hydroxypropyl methylcellulose (HPMC) to mature-green tomatoes on the firmness and color was investigated. Tomatoes were stored at 20℃ for up to 18 days. Firmness decreased as storage time increased in all treatments. However, application of HPMC edible coating delayed softening of tomatoes during 18 days of storage at 20℃ . At days 7, 13 and 18,the firmness of tomatoes coated with HPMC was significantly ( P ≤ 0.05) greater than the firmness of uncoated tomatoes. The study also confirmed that HPMC coatings could significantly (P≤0.05) delay the changes in color of tomatoes stored at 20℃ . The ripening of tomatoes from the pink stage to the red stage was successfully retarded. HPMC coating could extend the shelf life of fresh tomatoes. The retardation of the rate of loss of firmness could reduce the economic loss that would result from spoilage by mechanical injury during transportation of tomatoes.

【总页数】5页(109-113)

【关键词】羟丙基甲基纤维素;可食用涂层;西红柿;保鲜技术;贮藏